Available packages are accessible at https://packages.ntop.org for both nightly and stable builds. Each new build overwrites the previous one. We have decided not to maintain an archive of old package versions because every new build introduces fixes and/or new features that render the previous build obsolete. This decision is motivated by the fact that old package versions may contain vulnerabilities or missing fixes that could be exploited. Therefore, we encourage the use of the latest package versions.
If you wish to retain a copy of a specific package version (e.g., for reinstalling the machine in the event of a crash), we invite you to archive such a version, including all its dependencies (both ntop and non-ntop, such as those of the Linux distribution you are using).